The Sony XT-100HD states that all it needs is a head unit that accepts sat radio.
I am having trouble deciding if this could work with teh D3? For 20 bucks after rebate I might try - anyone else have any experience in this? I already have Sirius and want to try HD radio(just for the sake of trying it).
Also there is a 50 dollar rebate http://ak.buy.com/buy_assets/retail/pdfs/08Q2/0630-0929db_50HDradio.pdf